Login To The Comtrend CT-600 Router Using Your Web Browser

Open a web browser like Internet Explorer or Firefox. Enter the internal IP address of your router in the address bar of your browser.

In the picture above the address bar has http://www.google.com in it. Just replace all of that with the internal IP address of your Comtrend CT-600 router.
By default the IP address should be set to 192.168.1.1.

You should see a box prompting you for your username and password. Enter your username and password now.

The Default Comtrend CT-600 Router Username is: root

The Default Comtrend CT-600 Router Password is: root

Click the Ok button to log in to your Comtrend CT-600 router.

Default Usernames and Passwords for other Comtrend Routers

If you can't login to your router because you forgot your Comtrend CT-600 router username and password, use our
How to Reset a Router Password guide to set your
Comtrend CT-600 router back to its factory settings.

How to Port Forward Synology RS212 on the Comtrend CT-600

Having trouble forwarding ports on the Comtrend CT-600?

If you are having trouble with this guide, then perhaps PFConfig may be your solution.
PFConfig is a software tool that will automatically forward ports for your Comtrend CT-600 router to save you time and hassle.

Comtrend CT-600 Router Port Forwarding Screenshots

Now that you are logged in to your Comtrend CT-600 router you should see the following:

Click the NAT Port Redirect link near the left of the page.

Click the Redirect Port link near the top of the page.

Click the Add button near the bottom of the page.

Forward Ports 20-22 on the Comtrend CT-600

We will list a series of lines here that will show you exactly how to forward the ports you need to forward. Synology RS212 requires
you to forward the 20-22,25,80,110-111,137-139,143,443,445,548,873,892,993,995,2049,3260,4662,4672,5000-5001,5005-5006,5432,6881-6999,7000-7001,9997-9999,55536-55663,55736-55863 ports. Go ahead and enter the settings shown above into the Redirect Port menu and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 25 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 80 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 110-111 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 137-139 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 143 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 443 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 445 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 548 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 873 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 892 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 993 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 995 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 2049 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 3260 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 4672 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 5000-5001 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 5005-5006 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 5432 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 6881-6999 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 7000-7001 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 9997-9999 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 55536-55663 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 55736-55863 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 25 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 110-111 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 137-139 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 143 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 445 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 892 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 993 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 995 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 2049 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 4662 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 4672 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 5432 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 6881-6999 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

Forward Ports 9997-9999 on the Comtrend CT-600

You should see another page of settings that need to be entered into one of the blank lines on your routers Redirect Port page.
Go ahead and enter those settings and then click Apply.

Redirect Port Configuration

Public Port From:

Public Port To:

Local Address:

Local Port From:

Local Port To:

Protocol:

And that is it! You are done!

Test if Your Ports are Open

Now that you have forwarded ports for Synology RS212 on the Comtrend CT-600 you should test to see if your ports are forwarded correctly.

To test if your port has been properly forwarded, you can use our Open Port Check tool.
Our Open Port Check tool is the only online port checking tool with Guaranteed Results.